package demon3;

/**
 * Created with IntelliJ IDEA.
 * Description:
 */
public class KeyBoard implements USB{
    public void input(){
        System.out.println("打字");
    }

    @Override
    public void openDevice() {
        System.out.println("打开键盘");
    }

    @Override
    public void closeDevice() {
        System.out.println("关闭键盘");
    }
}
